Subnet details CIDR notation (e.g. 192.168.1.0/24) Or IP + subnet mask Subnet mask Calculate Clear Subnet summary Network Network address – Broadcast address – First usable – Last usable – Size & mask Subnet mask – Wildcard mask – Total addresses – Usable hosts – Prefix length – Show binary representation IP address: – Subnet mask: – Subnetting helper Target prefix length Select /mask List subnets Subnet First Last 2. Multiple CIDR tools (summarize & overlap) Paste one CIDR per line to summarize, merge, or check for overlaps. Summarize

Calculators in Subnet details CIDR notation (e.g. 192.168.1.0/24) Or IP + subnet mask Subnet mask Calculate Clear Subnet summary Network Network address – Broadcast address – First usable – Last usable – Size & mask Subnet mask – Wildcard mask – Total addresses – Usable hosts – Prefix length – Show binary representation IP address: – Subnet mask: – Subnetting helper Target prefix length Select /mask List subnets Subnet First Last 2. Multiple CIDR tools (summarize & overlap) Paste one CIDR per line to summarize, merge, or check for overlaps. Summarize.